CN214944767U - Volume type tailing slurry delivery pump - Google Patents

Abstract

The utility model relates to a volume type tailing pulp delivery pump belongs to displacement pump technical field. Volume type tailing pulp delivery pump, including the pump body that has the inner chamber, the interval is equipped with annular flange board and annular mounting panel in the pump body, the flange board with the mounting panel is in proper order separated for ejection of compact chamber, volume chamber and feeding chamber for the pump body, the quantity in volume chamber has a plurality ofly, and is a plurality of volume chamber annular interval sets up, and one end is passed through the flange board with feeding chamber intercommunication, the other end passes through the mounting panel ejection of compact chamber intercommunication, every the volume intracavity all slides and is equipped with the promotion subassembly that is used for promoting the material. Has the advantages that: the advantages of the reciprocating displacement pump and the advantages of the rotary pump are well combined, the application range of tailing slurry with different particle fineness or mass concentration is wide, the adjustable range of pumping speed is wide, and the preparation and tailing conveying links of paste can be well served.

Description

Volume type tailing slurry delivery pump

Technical Field

The utility model belongs to the technical field of the displacement pump, concretely relates to volume type tailing pulp delivery pump.

Background

In the mining industry, reciprocating displacement pumps and slurry pumps are widely applied to paste or slurry conveying, but due to the structure and the working principle of the slurry pump, slurry particles often impact with an impeller at a high speed, so that the pump of the type is easy to lose due to friction, and secondly, the pump of the type is not easy to realize stable control of low flow rate and flow, and when the pressure of an input end and an output end changes, the pumping quantity is easy to fluctuate. In addition, reciprocating positive displacement pumps are also widely used for high mass concentration slurry delivery, but most of these pump types are used in high delivery volume, low speed and high pressure applications. With the improvement of environmental protection requirements, tailing slurry is gradually used as a raw material for filling paste, and the filling paste is prepared by adding substances such as cement or flocculating agent with different qualities into the tailing slurry. In the paste preparation process, as a certain requirement is required for the proportion among all materials, the input quantity of the tail mortar needs to be controlled and monitored, the characteristics of continuous conveying of a slurry pump are achieved, the characteristics of a reciprocating displacement pump that certain pumping pressure and bottom loss can be guaranteed, the range of the mass concentration of the slurry is wide, and the pumping quantity can be accurately controlled.

Therefore, a volumetric tailing slurry transfer pump is provided to solve the deficiencies in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem and provide positive displacement tailing pulp delivery pump, fine advantage with reciprocating type positive displacement pump combines together with the advantage of rotary pump, and it is wide to the tailing pulp accommodation of different particle fineness or mass concentration, and pumping speed adjustable range is wide, can be fine serve in lotion preparation and tailing transport link.

The utility model provides an above-mentioned technical problem's technical scheme as follows: this volume type tailing pulp delivery pump is including the pump body that has the inner chamber, the interval is equipped with annular flange board and annular mounting panel in the pump body, the flange board with the mounting panel is in proper order separated for ejection of compact chamber, volume chamber and feeding chamber the pump body, the quantity in volume chamber has a plurality ofly, and is a plurality of volume chamber annular interval sets up, and one end is passed through the flange board with feeding chamber intercommunication, the other end passes through the mounting panel ejection of compact chamber intercommunication, every the equal slip of volume intracavity is equipped with the promotion subassembly that is used for promoting the material, be equipped with in the feeding intracavity and be used for the drive promote the subassembly and be straight reciprocating motion's drive assembly.

Has the advantages that: the advantages of the reciprocating displacement pump and the advantages of the rotary pump are well combined, the application range of tailing slurry with different particle fineness or mass concentration is wide, the adjustable range of pumping speed is wide, and the preparation and tailing conveying links of paste can be well served.

Further, the driving assembly comprises a curved disc, a universal joint, a star-shaped push disc and a connecting rod, one end of the curved disc is a rotating shaft which is horizontally arranged, one end of the rotating shaft penetrates through and extends out of the pump body and then is in transmission connection with a power input end, the other end of the rotating shaft is provided with a thrust bearing mounting plate, the thrust bearing mounting plate is connected with the star-shaped push disc through a thrust bearing, so that the star-shaped push disc swings back and forth, an included angle exists between a mounting surface of the thrust bearing mounting plate and the axis of the rotating shaft, the star-shaped push disc is mounted on the flange plate through the universal joint, the universal joint comprises a universal joint support rod, a flange plate, a cross ring, a first pin shaft and a second pin shaft, one end of the universal joint support rod is fixedly arranged on the flange plate, the other end of the universal joint support rod is provided with the flange plate, and the flange plate is rotatably connected with the cross ring through the second pin shaft which is vertically arranged, the crossing ring is connected through the rotation of the first round pin axle that the level set up on the universal joint bracing piece, star type pushes away the dish fixed connection be in on the ring flange, star type pushes away the dish and deviates from the interval is provided with a plurality of connecting rods in the one side of star type pushes away the dish, the one end of connecting rod is rotated and is connected on the star type pushes away the dish, be equipped with the first through-hole that supplies the material to pass through on the flange board, first through-hole with the connecting rod one-to-one, the other end of connecting rod passes rotate behind the first through-hole and connect the correspondence promote the subassembly.

The beneficial effect of adopting the further scheme is that: under the drive of the power input end, the bent disc drives the star-shaped pushing disc to swing, and the connecting rod drives the pushing assembly to reciprocate, so that the material is pushed.

Further, the pushing assembly comprises a piston body, the piston body is of a cylindrical structure with two open ends, one end of the piston body is rotatably connected with the connecting rod, the other end of the piston body is provided with a piston body one-way valve for closing or opening the opening, the piston body one-way valve comprises a first rubber pad and a first one-way valve reinforcing plate, a first transverse plate is arranged at the opening of the first rubber pad, one surface of the first rubber pad is fixedly arranged on the first transverse plate, the other surface of the first rubber pad is fixedly provided with the first one-way valve reinforcing plate for increasing strength, a volume cavity one-way valve is arranged on the mounting plate, a plurality of second through holes are arranged on the mounting plate at intervals, the second through holes correspond to the volume cavities one by one, the volume cavity one-way valve comprises a second rubber pad and a second one-way valve reinforcing plate, and a second transverse plate is arranged in each second through hole, one surface of the second rubber pad is fixedly arranged on the second transverse plate, and the other surface of the second rubber pad is fixedly provided with the second one-way valve reinforcing plate for increasing strength.

The beneficial effect of adopting the further scheme is that: assuming that the movement direction of the piston to the feeding cavity is a return stroke, when the piston body returns, the volume cavity one-way valve can form sealing with the volume cavity under the action of the self elasticity of the rubber pad and the positive pressure of the discharging cavity, and a negative pressure area can be formed between the piston body and the volume cavity one-way valve at the moment. The rubber pad of piston body check valve can receive the pressure and the outside atmospheric pressure of volume intracavity ground paste, make both sides open, the ground paste can get into the volume chamber through the piston body check valve, along with the rotation of bent type dish, certain piston cylinder can reach the extreme position under star type pushing tray pulling effect, inhale the material process and accomplish this moment, bent type dish continues to rotate, a certain arm of star type pushing tray becomes the promotion piston by the pulling piston this moment, the piston gets into the journey state that pushes away, at the journey state that pushes away, the piston body check valve receives the ground paste pressure of volume intracavity, make the rubber pad and the tight piston body that pastes of check valve reinforcing plate, form sealedly, promote the outside discharge of ground paste, the volume chamber check valve receives the ground paste pressure to open to the outside this moment, make the ground paste get into out the material chamber.

Further, the included angle between the mounting surface of the thrust bearing mounting plate and the axis of the rotating shaft is 45-70 degrees.

The beneficial effect of adopting the further scheme is that: the larger the angle, the greater the range of motion of the piston body.

Furthermore, the star-shaped pushing disc is connected to the flange plate through bolts.

The beneficial effect of adopting the further scheme is that: the fixing effect is good, and the assembly and the disassembly are convenient.

Furthermore, the connecting rod comprises a middle push rod, a push rod connector and a third pin shaft, and two ends of the middle push rod are respectively connected to the star-shaped pushing disc and the piston body in a rotating mode through the matching of the push rod connector and the third pin shaft.

The beneficial effect of adopting the further scheme is that: the push rod connector is respectively fixed at the mounting hole positions of the piston body and the star-shaped push disc through a pin shaft, the piston body performs linear reciprocating motion in the operation process of the pump body, a certain support arm of the star-shaped push disc performs regular curvilinear motion in space, and the component of the curvilinear motion of the support arm along the motion direction of the piston can be transmitted to the piston body through the connecting rod mechanism.

Furthermore, the joint of the push rod connector and the third pin shaft is sleeved with a sealing rubber sleeve for preventing materials from entering.

The beneficial effect of adopting the further scheme is that: the star-shaped pushing disc is movably connected with the connecting rod, the joint is wrapped by the sealing rubber sleeve, sealing measures are taken at the joint with the part, lubricating grease is coated inside the sealing rubber sleeve, conveyed materials can be separated from the movable joint, the materials are prevented from entering a joint cavity, and meanwhile the lubricating grease can be wrapped in the joint cavity well to lubricate the joint well.

Furthermore, the two ends of the piston body are both sleeved with sealing rings.

The beneficial effect of adopting the further scheme is that: the sealing effect is good, and the transportation of materials is convenient.

Further, the bottom of the pump body is fixedly provided with a base.

The beneficial effect of adopting the further scheme is that: the support is stable, and the installation and the transportation are convenient.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic perspective view of the present invention;

FIG. 3 is a schematic structural view of a curved plate;

FIG. 4 is a schematic structural view of a gimbal;

FIG. 5 is a schematic structural diagram of a star-shaped pushing plate;

FIG. 6 is a schematic structural view of the check valve of the piston body;

FIG. 7 is a schematic structural view of a sealant sleeve;

FIG. 8 is a schematic view of a connecting rod;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a pump body; 2. a curved plate; 21. a rotating shaft; 22. a thrust bearing mounting plate; 3. a universal joint; 31. A gimbal support rod; 32. a flange plate; 33. a crossed loop; 34. a first pin shaft; 35. a second pin shaft; 4. a star-shaped push plate; 5. a connecting rod; 51. a middle push rod; 52. a push rod connector; 53. a third pin shaft; 6. a base; 7. a volume chamber; 8. a discharge cavity; 9. a volume chamber check valve; 10. a piston body check valve; 11. a feed cavity; 12. sealing the rubber sleeve; 13. a piston body; 14. a seal ring; 15. a first rubber pad; 16. a first check valve reinforcement plate; 17. a first transverse plate; 18. a flange plate; 19. mounting a plate; 20. a first via.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1-8, the present embodiment provides a positive displacement slurry transfer pump, comprising a pump body 1 having an internal cavity, annular flange plates 18 and annular mounting plates 19 are arranged in the pump body 1 from right to left at intervals in sequence, the flange plate 18 and the mounting plate 19 divide the pump body 1 into a discharge cavity 8, a volume cavity 7 and a feed cavity 11 in sequence, the volume chambers 7 are arranged independently, the volume chambers 7 are arranged at intervals in a ring shape, one end of the flange plate is communicated with the feeding cavity 11 through the flange plate 18, the other end of the flange plate is communicated with the discharging cavity 8 through the mounting plate 19, a pushing component for pushing materials is arranged in each volume cavity 7 in a sliding mode, the feeding cavity 11 is internally provided with a driving assembly for driving the pushing assembly to do linear reciprocating motion, and the bottom of the pump body 1 is fixedly provided with a base 6 through bolts.

The driving assembly comprises a curved disc 2, a universal joint 3, a star-shaped push disc 4 and a connecting rod 5, one end of the curved disc 2 is a rotating shaft 21 which is horizontally arranged, one end of the rotating shaft 21 penetrates through and extends out of the pump body 1 to be in transmission connection with a power input end, the power input end is a variable frequency motor, the other end of the rotating shaft 21 is provided with a thrust bearing mounting plate 22, the thrust bearing mounting plate 22 is connected with the star-shaped push disc 4 through a thrust bearing to enable the star-shaped push disc 4 to swing back and forth, an included angle exists between a mounting surface of the thrust bearing mounting plate 22 and the axis of the rotating shaft 21, the included angle ranges from 45 degrees to 70 degrees, the larger the included angle is, the larger the movement range of the pushing assembly is, the star-shaped push disc 4 is mounted on the flange plate 18 through the universal joint 3, and the universal joint 3 comprises a universal joint support rod 31, a flange plate 32, a crossed ring 33, a cross ring 33, A first pin shaft 34 and a second pin shaft 35, one end of the universal joint support rod 31 is fixedly arranged on the flange plate 18, the other end is provided with the flange plate 32, the flange plate 32 is rotatably connected with the crossed ring 33 through the second pin shaft 35 which is vertically arranged, the cross ring 33 is rotatably connected to the gimbal strut 31 by a first pin 34 horizontally disposed, the star-shaped pushing disc 4 is fixedly connected to the flange plate 32 through bolts, a plurality of connecting rods 5 are arranged on one surface of the star-shaped pushing disc 4 deviating from the star-shaped pushing disc 4 at intervals, one end of the connecting rod 5 is rotatably connected to the star-shaped pushing disc 4, a first through hole 20 for materials to pass through is arranged on the flange plate 18, the first through holes 20 correspond to the connecting rods 5 one by one, and the other ends of the connecting rods 5 penetrate through the first through holes 20 and then are connected with the corresponding pushing assemblies in a rotating mode.

The pushing assembly comprises a piston body 13, the piston body 13 is a cylindrical structure with two open ends, two ends of the piston body 13 are respectively provided with a sealing ring 14 to achieve a sealing effect, one end of the piston body 13 is rotatably connected with the connecting rod 5, the other end of the piston body is provided with a piston body one-way valve 10 for closing or opening the open end, the piston body one-way valve 10 comprises a first rubber pad 15 and a first one-way valve reinforcing plate 16, the opening of the first rubber pad 15 is provided with a first transverse plate 17, one surface of the first rubber pad 15 is fixedly arranged on the first transverse plate 17, the other surface of the first rubber pad 15 is fixedly provided with the first one-way valve reinforcing plate 16 for increasing strength, the mounting plate 19 is provided with a volume cavity one-way valve 9, the mounting plate 19 is provided with a plurality of second through holes at intervals, and the second through holes correspond to the volume cavities 7 one to one, the volume cavity check valve 9 comprises a second rubber pad and a second check valve reinforcing plate, a second transverse plate is arranged in a second through hole, one surface of the second rubber pad is fixedly arranged on the second transverse plate, the other surface of the second rubber pad is fixedly provided with the second check valve reinforcing plate for increasing strength, as shown in fig. 8, the connecting rod 5 comprises a middle push rod 51, a push rod connector 52 and a third pin shaft 53, two ends of the middle push rod 51 are respectively connected to the star-shaped push disc 4 and the piston body 13 through the matching rotation of the push rod connector 52 and the third pin shaft 53, and a sealing rubber sleeve 12 for preventing materials from entering is sleeved at the joint of the push rod connector 52 and the third pin shaft 53.

During the operation of the pump, the piston body 13 makes a linear reciprocating motion, and a certain arm of the star-shaped pushing disc 4 makes a regular curvilinear motion in space, and the component of the curvilinear motion of the arm along the motion direction of the piston body 13 can be transmitted to the piston body 13 through the structure of the connecting rod 5. As shown in fig. 6, a piston body check valve 10 is installed at one end of the piston body 13, the check valve is composed of a first rubber pad 15 and a first check valve reinforcing plate 16, the first rubber pad 15 plays a role in sealing and rebounding, and when material is sucked, the negative pressure in the volume cavity 7 and the positive pressure in the feeding cavity 11 exert pressure on the first rubber pad 15, so that the first rubber pad 15 is separated from the piston body 13, and the material enters the volume cavity 7. In the discharging process, the materials exert an opposite acting force on the first rubber gasket 15 to enable the first check valve reinforcing plate 16 to be tightly attached to the piston body 13 to form sealing, so that slurry is discharged out of the volume cavity 7, the first check valve reinforcing plate 16 is connected with the first rubber gasket 15 through bolts to play a reinforcing role, and the situation that sealing is not tight due to large deformation generated when the pressure on the first rubber gasket 15 is large is avoided. The volume cavity type pneumatic conveying device comprises 6 volume cavities 7 which are uniformly distributed, wherein volume cavity one-way valves 9 are arranged at the tail ends of the volume cavities 7, the volume cavity one-way valves 9 are identical in structure to piston body one-way valves 10 and are only different in size, the volume cavity one-way valves comprise second rubber pads and second one-way valve reinforcing plates, second transverse plates are arranged in second through holes, one surfaces of the second rubber pads are fixedly arranged on the second transverse plates, the other surfaces of the second rubber pads are fixedly provided with the second one-way valve reinforcing plates used for increasing strength, and materials are guaranteed to flow in the volume cavities 7 towards a single direction. The piston body 13 and the volume chamber 7 are sealed by a rubber sealing ring 14. The universal joint 3 plays a role in connecting the star-shaped pushing disc 4 and the pump body 1, the central point of the star-shaped pushing disc 4 is fixed when the pump works, the support arm can swing freely, and materials are gathered in the discharging cavity 8 after being discharged from the volume cavity 7 and then are led out by a pipeline. As shown in fig. 4, the universal joint 3 is mainly composed of a universal joint support rod 31, a flange 32, a cross ring 33, a first pin 34, and a second pin 35. The star-shaped push plate 4 is fixed to the flange plate 32 by bolts, and the universal joint support rod 34 is fixed to the flange plate 18. In the device, as shown in fig. 7, the sealing rubber sleeve 12 mainly plays a role in sealing a joint, two ends of the device are sealed with connected parts, the middle part of the device can be bent freely, for example, the star-shaped pushing disc 4 is movably connected with the connecting rod 5, the joint is wrapped by the sealing rubber sleeve 12, sealing measures are taken at the joint with the parts, lubricating grease is coated inside the joint, conveyed materials can be separated from the movable joint, the materials are prevented from entering the joint cavity, and meanwhile, the lubricating grease can be well wrapped in the joint cavity for good lubrication.

The working principle is as follows:

during operation, slurry is introduced into the feeding cavity 11 through a pipeline, the bent disc 2 drives the star-shaped pushing disc 4 to swing under the driving of the variable frequency motor, and the connecting rod 5 drives the piston body 13 to reciprocate. Assuming that the movement direction of the piston body 13 to the feeding cavity 11 is a return stroke, when the piston returns, the volume cavity check valve 10 can form sealing with the volume cavity 7 under the action of the self elasticity of the rubber gasket and the positive pressure of the discharging cavity 8, at the moment, a negative pressure area can be formed between the piston body 13 and the volume cavity check valve 9, the rubber gasket of the piston body check valve 10 can be subjected to the pressure of slurry in the volume cavity 7 and the external atmospheric pressure, so that two sides are opened, the slurry can enter the volume cavity 7 through the piston body check valve 10, along with the rotation of the curved disc 2, a certain piston cylinder can reach a limit position under the pulling action of the star-shaped pushing disc 4, and at the moment, the material suction process is completed. The curved disc 2 continues to rotate, at the moment, a certain support arm of the star-shaped push disc 4 is changed into a push piston from a pulling piston, the piston enters a push stroke state, in the push stroke state, the piston body one-way valve 10 is subjected to slurry pressure in the volume cavity 7, so that the rubber pad and the first one-way valve reinforcing plate 16 are tightly attached to the piston body 13 to form sealing, the push slurry is discharged outwards, at the moment, the volume cavity one-way valve 9 is opened outwards under the slurry pressure, the slurry enters the discharge cavity 8, six volume cavities of the device work circularly, and continuous conveying of the slurry is achieved.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (9)

1. A positive displacement tailing slurry transfer pump, comprising:

pump body (1) with inner chamber, the interval is equipped with annular flange board (18) and annular mounting panel (19) in the pump body (1), flange board (18) with mounting panel (19) are divided for ejection of compact chamber (8), volume chamber (7) and feeding chamber (11) in proper order in the pump body (1), the quantity in volume chamber (7) has a plurality ofly, and is a plurality of volume chamber (7) annular interval sets up, and one end is passed through flange board (18) with feeding chamber (11) intercommunication, the other end passes through mounting panel (19) with ejection of compact chamber (8) intercommunication, every all slide in volume chamber (7) and be equipped with the promotion subassembly that is used for promoting the material, be equipped with in feeding chamber (11) and be used for the drive the promotion subassembly is straight reciprocating motion's drive assembly.

2. The positive displacement tailing slurry transfer pump of claim 1, characterized in that, drive assembly includes bent type dish (2), universal joint (3), star type pushing disc (4) and connecting rod (5), the pivot (21) of one end for the level setting of bent type dish (2), the one end of pivot (21) is passed and is stretched out be connected with the power input end transmission behind the pump body (1), the other end of pivot (21) is equipped with thrust bearing mounting panel (22), thrust bearing mounting panel (22) with star type pushing disc (4) are connected through thrust bearing, make star type pushing disc (4) round-trip movement, the installation face of thrust bearing mounting panel (22) with there is the contained angle in the axis of pivot (21), star type pushing disc (4) pass through universal joint (3) are installed on flange board (18), universal joint (3) include universal joint bracing piece (31), The flange plate comprises a flange plate (32), a cross ring (33), a first pin shaft (34) and a second pin shaft (35), one end of a universal joint support rod (31) is fixedly arranged on the flange plate (18), the other end of the universal joint support rod is provided with the flange plate (32), the flange plate (32) is vertically arranged, the second pin shaft (35) is rotatably connected with the cross ring (33), the cross ring (33) is rotatably connected onto the universal joint support rod (31) through the first pin shaft (34) which is horizontally arranged, a star-shaped push disc (4) is fixedly connected onto the flange plate (32), a plurality of connecting rods (5) are arranged on one surface of the star-shaped push disc (4) deviating from the star-shaped push disc (4) at intervals, one end of each connecting rod (5) is rotatably connected onto the star-shaped push disc (4), a first through hole (20) for materials to pass through is arranged on the flange plate (18), the first through holes (20) are in one-to-one correspondence with the connecting rods (5), and the other ends of the connecting rods (5) penetrate through the first through holes (20) and then are connected with the corresponding pushing assemblies in a rotating mode.

3. The positive displacement tailing slurry delivery pump according to claim 2, characterized in that the pushing assembly comprises a piston body (13), the piston body (13) is a cylindrical structure with two open ends, one end of the piston body (13) is rotatably connected with the connecting rod (5), the other end of the piston body is provided with a piston body one-way valve (10) for closing or opening the opening, the piston body one-way valve (10) comprises a first rubber gasket (15) and a first one-way valve reinforcing plate (16), a first transverse plate (17) is arranged at the opening of the first rubber gasket (15), one surface of the first rubber gasket (15) is fixedly arranged on the first transverse plate (17), the other surface of the first rubber gasket (15) is fixedly provided with the first one-way valve reinforcing plate (16) for increasing strength, and a volume cavity one-way valve (9) is arranged on the mounting plate (19), the interval is provided with a plurality of second through-holes on mounting panel (19), the second through-hole with volume chamber (7) one-to-one, volume chamber check valve (9) are including second rubber pad and second check valve reinforcing plate, be equipped with the second diaphragm in the second through-hole, the one side of second rubber pad is fixed to be established on the second diaphragm, the another side of second rubber pad is fixed to be equipped with and is used for the gaining in strength the second check valve reinforcing plate.

4. A positive displacement slurry transfer pump according to claim 2, wherein the mounting face of the thrust bearing mounting plate (22) is angled at 45-70 ° to the axis of the shaft (21).

5. A positive displacement slurry transfer pump according to claim 2, wherein the star-shaped impeller (4) is bolted to the flange (32).

6. The positive displacement tailing slurry transfer pump according to claim 3, characterized in that the connecting rod (5) comprises a middle push rod (51), a push rod connector (52) and a third pin shaft (53), and two ends of the middle push rod (51) are respectively connected to the star-shaped pushing disc (4) and the piston body (13) in a rotating mode through the matching of the push rod connector (52) and the third pin shaft (53).

7. A positive displacement tailing slurry transfer pump according to claim 6, characterized in that the joint between the push rod connector (52) and the third pin (53) is provided with a sealing rubber sleeve (12) for preventing materials from entering.

8. A positive displacement tailing slurry transfer pump according to claim 6, characterized in that the piston body (13) is provided with sealing rings (14) on both ends.

9. A positive displacement tailing slurry transfer pump according to any of the claims 1-8, characterized in that the bottom of the pump body (1) is fixedly provided with a base (6).

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